An electric water pump is a motor-driven machine that moves water from a source — a well, borehole, tank, reservoir, mains line or drainage pit — to a point of use or discharge. This guide is written for importers, distributors, contractors and buyers who are at the beginning of the selection process and need to understand what the main electric water pump types are, what each one is used for, and how to judge the manufacturers behind them.

The short answer to the first question most buyers ask: there is no single best electric water pump. Selection is driven by the water source, the medium being pumped, and the required duty point. A pump chosen only by horsepower — without matching flow, head and suction lift — is the most common cause of weak performance and early failure.

Problem Definition: Why Electric Water Pump Selection Goes Wrong

Most electric water pump problems that reach a supplier's technical desk are not manufacturing defects. They are mismatch problems, and they usually fall into five categories.

• Duty point mismatch. Flow and head move in opposite directions on any pump curve. A model chosen for high flow at low head will under-deliver in a system that actually needs height and pressure.
• Medium mismatch. A clean water submersible pump and a submersible sewage pump are built differently. The QDX is a vertical submersible pump for clean water service, while the V and WQ series are submersible sewage pumps intended for wastewater, dirty water and drainage duty. Using one in place of the other shortens service life.
• Suction lift ignored. Across the CHIMP surface pump and jet pump ranges, the published maximum suction lift is 8 m to 9 m. A buyer who expects to draw water from a source deeper than that should be looking at a submersible pump instead.
• Installation depth ignored. The borehole pump range covers model designations SDM/SP/SR/SD/ST/SK/QGD and is designed for up to 100 m immersion depth. The QDX and V series are rated for a maximum immersion depth of 5 m. These are different installation conditions.
• Power supply and protection ignored. Single-phase and three-phase options exist across the range. Surface pumps such as the QB, QT, WZB, CPM, MHF, STP and Jet series carry IPX4 motor protection, while submersible models such as the QDX, V and WQ carry IPX8 protection for underwater operation.

Installation conditions matter as much as the pump itself. In the documented application conditions for these products, the matched equipment is a pressure gauge, water pipe and filter, and the stated requirements are correct motor protection, a clean water medium where applicable, and compliance with local electrical safety standards. Missing any of these is a common cause of complaints that are later traced back to the installation rather than the pump.

Industry Background: What the Electric Water Pump Market Looks Like in 2026

Three published figures are useful for buyers sizing up this category in 2026.

• The global water pump market is estimated at USD 76.1 billion in 2026, according to market research published by Grand View Research / Business Research Insights.
• Centrifugal pumps accounted for 66.4% of global water pump market revenue in 2025, based on the same source. In other words, centrifugal designs remain the default platform for most water-moving duties.
• China's centrifugal pump exports under HS code 841370 reached USD 5.3 billion in 2024, according to customs data published by the General Administration of Customs China (GACC).

For a buyer, the practical implication is straightforward. Centrifugal and centrifugal-derived designs dominate volume, so the real differentiation between suppliers usually sits in application coverage, documented specifications, OEM flexibility and after-sales support rather than in the basic principle of the pump.

Zhejiang Qiantao Pumps Co., Ltd., which trades under the brand CHIMP PUMPS, is an electric water pump manufacturer based in Wenling City, Zhejiang Province, China. The company was established in 1998 and has been engaged in the water pump industry for more than 25 years. It operates as a production-oriented manufacturer with in-house production capability, a manufacturing facility covering 140,000 m², approximately 630 employees and 75 engineers working within the CHIMP Technology Center. Annual production capacity reaches 3,000,000 units of water pumps and electric motors, and roughly 70% of output is exported to Asia, Europe, the Middle East, South America and Africa. The company states that its products and management systems hold a number of international certifications, including CE, ISO 9001, CB, SA8000:2014, ISO 14001 and ISO 45001, and that its products comply with CE and RoHS standards. More background is available at www.chinaqiantao.cn.

Detailed Solution: The Electric Water Pump Families CHIMP Pumps Manufactures

CHIMP PUMPS builds electric water pumps across four broad families — surface pumps, self-priming pumps, jet pumps and submersible pumps — covering household, agricultural, commercial and industrial water applications. The published ranges below are the starting point for matching a pump to a job.

Surface pumps and centrifugal pumps

The surface pump family covers the smallest duties in the range. The QB is an electric water pump classified as a vortex pump, with a power range of 0.37–0.75 kW (0.5–1 HP), a flow range of 35–60 L/min, a head range of 35–50 m and a maximum suction lift of 8 m. It is intended for small living water supply, automatic water sprinkler systems, small air-conditioner systems and supporting equipment.

Centrifugal models take over where flow and head requirements grow. The CPM series centrifugal pump spans 0.37–1.5 kW (0.5–2 HP), with a maximum flow of 80–140 L/min, a maximum head of 20–40 m and a maximum suction of 8 m. The MHF series is a horizontal centrifugal water pump with motor power of 0.75–3.0 kW (1.0–4.0 HP), a maximum flow rate of 350–900 L/min, a maximum head of 12–18 m, a maximum suction lift of 8 m, inlet/outlet sizes from 2" × 2" to 4" × 4", and IPX4 motor protection with Class B or Class F insulation.

For pressure-driven duties, the HVM vertical multistage centrifugal pump (model designation HM/VM) is rated at 0.37–3.0 kW, with a rated flow of 2–12 m³/h and a rated head of 17–81 m at 3000 rpm. Power supply options are 220 V/50 Hz or 380 V/50 Hz, connection sizes are 25×25 mm, 32×32 mm or 40×32 mm, the maximum working pressure is 1.0 MPa, the maximum liquid temperature is 70 °C and the maximum ambient temperature is 50 °C. The outer cylinder is stainless steel, and the impellers and middle sections are high-strength engineering plastic.

Self-priming pumps

Self-priming pumps matter when the water source sits below the pump and the installation cannot be flooded. The QT self-priming pump covers 0.37–0.75 kW (0.5–1 HP), a flow range of 2–3 m³/h, a head range of 30–40 m and a maximum suction of 8 m, with IPX4 protection and a maximum liquid temperature of 50 °C. It is intended for lifting water from a well, sprinkling irrigation in a garden, pressure boosting of running water and supporting equipment.

The WZB intelligent self-priming pump extends this into automatic operation. Its power range is 0.128–1.5 kW (0.17–2 HP), with a maximum flow of 25–100 L/min, a maximum head of 25–60 m, a maximum suction lift of 8 m and a liquid temperature range of 0–80 °C. Its stated protection features include dry-run protection, anti-jamming protection and built-in thermal protection, which is why it is positioned for automatic water supply and pressure boosting in homes and small commercial applications.

Jet pumps and automatic pump stations

Jet pumps are a common answer to low or unstable household water pressure. The Jet model is a self-priming jet pump with a power range of 0.45–1.5 kW (0.6–2 HP), a maximum flow of 30–80 L/min, a maximum head of 36–65 m, a maximum suction of 9 m and IPX4 protection. The STP self-priming jet pump covers 0.37–1.1 kW (0.5–1.5 HP), 40–60 L/min, a maximum head of 30–55 m and a maximum suction of 9 m, and is used for transferring clean water and liquids with similar physical and chemical properties.

The AUJET automatic pump station is the all-in-one option. It combines a pump, pressure tank, pressure switch and pressure gauge in one set, is supplied with most of the main components already assembled, and starts and stops according to water demand and system pressure. Power is 0.37–1.1 kW (0.5–1.5 HP), maximum flow is 40–60 L/min, maximum head is 30–55 m and maximum suction is 9 m. Tank sizes of 19 L, 24 L and 50 L are available for different water demand.

Submersible pumps: clean water, borehole and sewage

Submersible pumps work directly underwater, which changes both the installation depth and the cable routing requirements. Four published ranges cover most duties.

• QDX clean water submersible pump. A vertical submersible water pump for clean water service, 0.25–2.2 kW (0.34–3 HP), flow 1.5–65 m³/h, head 7–32 m, maximum immersion depth 5 m, 8 m cable, outlet 1"–4", IPX8, water cooling, copper winding motor with built-in thermal protector and a double sealing structure.
• Borehole pump, model designation SDM/SP/SR/SD/ST/SK/QGD. Stainless steel construction, power range 0.25–25 HP, designed for water supply from wells or reservoirs with up to 100 m immersion depth. Rewindable or screen-type motors are available in both single-phase and three-phase versions.
• V series submersible sewage pump. 0.18–2.2 kW (0.25–3 HP), maximum flow 8–40 m³/h, maximum head 7–17 m, maximum immersion depth 5 m, outlet sizes ½"–3", IPX8 and a liquid pH range of 4–10.
• WQ heavy-duty submersible sewage pump. 0.75–18.5 kW (1–25 HP), flow 6–180 m³/h, head 8–75 m, outlet sizes 2"–6", IPX8, cast iron pump body and impeller, copper winding motor and electroplated shaft surface for better durability.

Step-by-Step Breakdown: How to Select an Electric Water Pump

A repeatable selection sequence removes most of the guesswork. The order matters, because each step constrains the next one.

1. Define the water source and the medium. A well, a borehole, an overhead tank, a mains line and a drainage pit are four different starting conditions. Decide at the same time whether the medium is clean water or wastewater, because that decision alone separates the clean water submersible and surface pump ranges from the V and WQ sewage ranges.
2. Establish the real duty point. Add up the vertical lift, the pipe friction losses and the pressure the system must hold at the outlet. This gives the head requirement. Estimate the litres or cubic metres the system must deliver per hour to get the flow requirement.
3. Choose the pump family that fits the source. If the suction lift stays within 8–9 m, a surface, self-priming or jet pump can work. If the water level is deeper, or the pump has to sit inside the water, a submersible model such as the QDX or a borehole pump is the correct starting point.
4. Confirm the power supply and protection class. Check single-phase or three-phase availability, the supply voltage and frequency, and whether the installation needs IPX4 surface protection or IPX8 underwater protection. Confirm that correct motor protection will be fitted.
5. Check materials, sealing and documentation. Match the pump body, impeller and shaft materials to the medium, and check liquid temperature and pH limits. Ask for the model-level datasheet and the certification documents that apply to the exact model, not to the brand in general.
6. Validate with a sample and test report. A sample test on the actual duty point is the cheapest way to avoid a container-level mistake. Request the sample together with the test report and confirm delivery timing before committing to volume.

Use Cases: Where Each Electric Water Pump Type Fits

Farmland and garden irrigation, tap water pressurisation, water tower supply and well water extraction are the applications named in the published CHIMP application data. In practice, buyers usually fall into five groups.

• Household water supply and pressure boosting. The AUJET automatic pump station, the WZB intelligent self-priming pump, the Jet and STP jet pumps, the QB vortex pump and the QDX clean water submersible pump are all positioned for home water supply, showers, taps and small buildings where pressure is low or unstable.
• Agriculture and garden irrigation. The QDX, QT, STP and Jet models are intended for irrigation duties, with the QT made for lifting water from a well and sprinkling irrigation in a garden.
• Well, borehole and reservoir supply. The borehole pump range (SDM/SP/SR/SD/ST/SK/QGD) is designed for water supply from wells or reservoirs for domestic, civil, industrial, garden and irrigation use, with up to 100 m immersion depth.
• Wastewater, sewage and site drainage. The V series covers municipal and residential wastewater management, including construction sites, factories, commercial buildings, municipal projects and residential drainage. The WQ series is the heavier option for industrial, mining and construction drainage, tunnels and wells.
• Commercial and industrial water transfer, boosting and circulation. The MHF, CPM and HVM centrifugal pumps are used for building water supply, high-rise pressure boosting, fire-fighting water systems, heating, ventilation and air-conditioning circulation, hot-water circulation, industrial process water and reverse osmosis, ultrafiltration and swimming pool treatment systems.

Electric Water Pump Comparison Table

The table below compares the published CHIMP PUMPS electric water pump series by type, power range, flow, head and typical application. Figures are range values for each series and must be confirmed against the model-level performance curve before ordering.

All figures above are the published ranges for each CHIMP PUMPS series. Final selection must be confirmed against the model-level performance curve, the actual duty point and the local electrical requirements.

Frequently Asked Questions

Conclusion

Choosing an electric water pump is a sequence, not a single decision. Identify the water source and the medium, calculate the real duty point, pick the pump family that matches both, confirm the power supply and protection class, check the materials and documentation, and validate the choice with a sample test. Buyers who work in that order rarely end up with an oversized jet pump trying to lift water from a deep borehole, or a clean water pump doing sewage duty.

The published CHIMP PUMPS range covers that full sequence: vortex and self-priming surface pumps from 0.128 kW upwards, jet pumps and an all-in-one automatic pump station, centrifugal and vertical multistage pumps up to 81 m of head, and submersible clean water, borehole and sewage pumps up to 180 m³/h and 75 m of head. For importers, distributors and OEM buyers, the practical next step is to confirm the model that fits the duty point and request the matching documentation.